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63 lines
1.6 KiB
C
63 lines
1.6 KiB
C
/* Access functions for JISX0201 conversion.
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Copyright (C) 1997-2023 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#ifndef _JIS0201_H
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#define _JIS0201_H 1
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#include <stdint.h>
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/* Conversion table. */
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extern const uint32_t __jisx0201_to_ucs4[];
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static inline uint32_t
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__attribute ((always_inline))
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jisx0201_to_ucs4 (char ch)
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{
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uint32_t val = __jisx0201_to_ucs4[(unsigned char) ch];
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if (val == 0 && ch != '\0')
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val = __UNKNOWN_10646_CHAR;
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return val;
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}
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static inline size_t
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__attribute ((always_inline))
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ucs4_to_jisx0201 (uint32_t wch, unsigned char *s)
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{
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unsigned char ch;
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if (wch == 0xa5)
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ch = '\x5c';
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else if (wch == 0x203e)
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ch = '\x7e';
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else if (wch < 0x7e && wch != 0x5c)
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ch = wch;
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else if (wch >= 0xff61 && wch <= 0xff9f)
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ch = wch - 0xfec0;
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else
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return __UNKNOWN_10646_CHAR;
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s[0] = ch;
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return 1;
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}
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#endif /* jis0201.h */
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